Fixing a Bad Superblock

PionexUser · 09-04-2003, 04:47 AM

How can I do it?

Quote:

[root@localhost hubcaps]# /sbin/fsck /dev/hda2
fsck 1.32 (09-Nov-2002)
e2fsck 1.32 (09-Nov-2002)
Couldn't find ext2 superblock, trying backup blocks...
fsck.ext3: Bad magic number in super-block while trying to open /dev/hda2

The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>

sidey · 09-04-2003, 11:02 AM

What is your filesystem? ie, ext2 ext3 reiserfs?

Well it obviously isnt ext2, so try something like fsck.ext3 (check in /sbin) or find reiserfsck???? or something like.

preswang · 10-28-2003, 11:35 AM

same problem I have when I first boot from Gentoo 1.4
How to solve it?? thanks!

PionexUser · 10-28-2003, 09:27 PM

OK, turns out I had to format that partition........................

quatsch · 10-28-2003, 09:37 PM

The output, among other things, says this:
you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>

maybe do this first?

preswang · 10-29-2003, 06:25 AM

I have done this e2fsck -b 8193 /dev/hda and /dev/hda1(i forgot)
and it do fix my disk, but after re-boot, still got same problem.

ldare · 11-14-2003, 02:52 PM

Same here, have a problem on boot, and attempting to fix the problem
get the error message:
"The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2 filesystem ( and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 /dev/hda

Anyone with advice would be helpful